Love wearing my North Face down jacket for everything but work, but have a Gore Tex North Face for that, it means that with my fleese underneath, the only way to keep warm is to keep moving. As i work in retail that isnt a problem, just serve more customers or put out another case of stock and im fine.
Outside of work ive got to have a down jacket. Much warmer and also much more practicle, altho bulky, keeps me warm. In the new year i can see me trying to get a canada Goose down jacket as my current TNF is showing its age, this time last monday it was feeling its 3 years of age when i was waiting for a taxi for arround 5 hours when the snow and extreme cold put Central Scotland into parolisis.
Good thing about down jackets is that even if its arround 10C you can still wear them with only a T Shirt under them and still be happy.
When its less cold i wear a heavy hoody or zipper and a gillet. Sometimes if i can get away with it, just a T Shirt and my Gillet.
Jeans and boots are also a must. Wellies too if needed.